For the 2025 school year, there are 11 public schools serving 1,812 students in Dewey County, SD (there are , serving 72 private students). 96% of all K-12 students in Dewey County, SD are educated in public schools (compared to the SD state average of 91%).
The top ranked public schools in Dewey County, SD are Timber Lake Elementary - 02, Timber Lake High School - 01 and Timber Lake Middle School - 03. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Dewey County, SD public schools have an average math proficiency score of 19% (versus the South Dakota public school average of 43%), and reading proficiency score of 27% (versus the 51% statewide average). Schools in Dewey County have an average ranking of 1/10, which is in the bottom 50% of South Dakota public schools.
Minority enrollment is 91% of the student body (majority American Indian), which is more than the South Dakota public school average of 33% (majority American Indian).
Best Public Schools in Dewey County (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Timber Lake Elementary - 02
(Math: 70-74% | Reading: 60-64%)
Rank:
Rank:
9/
Top 20%10
500 Main St
Timber Lake, SD 57656
(605) 865-3654
Timber Lake, SD 57656
(605) 865-3654
Grades: PK-5
| 198 students
Rank: #22.
Timber Lake High School - 01
(Math: 40-59% | Reading: ≥80%)
Rank:
Rank:
9/
Top 20%10
500 Main St
Timber Lake, SD 57656
(605) 865-3654
Timber Lake, SD 57656
(605) 865-3654
Grades: 9-12
| 110 students
Rank: #33.
Timber Lake Middle School - 03
(Math: 45-49% | Reading: 65-69%)
Rank:
Rank:
8/
Top 30%10
500 Main St
Timber Lake, SD 57656
(605) 865-3654
Timber Lake, SD 57656
(605) 865-3654
Grades: 6-8
| 81 students
Rank: #44.
E. A. G. L. E. Center High School - 07
Alternative School
(Math: <50% | Reading: <50%)
Rank:
Rank:
6/
Top 50%10
E St
Eagle Butte, SD 57625
(605) 964-8773
Eagle Butte, SD 57625
(605) 964-8773
Grades: 9-12
| 3 students
Rank: #55.
E.a.g.l.e. Center - 09
Alternative School
(Math: <50% | Reading: <50% )
Rank:
Rank:
5/
Bottom 50%10
E St
Eagle Butte, SD 57625
(605) 964-8773
Eagle Butte, SD 57625
(605) 964-8773
Grades: 5-8
| n/a students
Rank: #66.
Eagle Butte High School - 01
(Math: ≤10% | Reading: 11-19%)
Rank:
Rank:
1/
Bottom 50%10
W Frontier Ave
Eagle Butte, SD 57625
(605) 964-8744
Eagle Butte, SD 57625
(605) 964-8744
Grades: 9-12
| 10 students
Rank: #77.
Eagle Butte Jr. High - 06
(Math: ≤5% | Reading: 15-19%)
Rank:
Rank:
1/
Bottom 50%10
672 Main St
Eagle Butte, SD 57625
(605) 964-7841
Eagle Butte, SD 57625
(605) 964-7841
Grades: 7-8
| 4 students
Rank: #88.
Eagle Butte Upper Elementary - 03
(Math: 4% | Reading: 9%)
Rank:
Rank:
1/
Bottom 50%10
24 W Prairie Rd
Eagle Butte, SD 57625
(605) 964-4911
Eagle Butte, SD 57625
(605) 964-4911
Grades: 3-6
| 295 students
Rank: n/an/a
2004 E Street
Eagle Butte, SD 57625
(605) 964-8777
Eagle Butte, SD 57625
(605) 964-8777
Grades: K-12
| 862 students
Rank: n/an/a
2006 Main St
Eagle Butte, SD 57625
(605) 964-7920
Eagle Butte, SD 57625
(605) 964-7920
Grades: K-2
| 71 students
Rank: n/an/a
15618 1st Ave
Ridgeview, SD 57652
(605) 733-2290
Ridgeview, SD 57652
(605) 733-2290
Grades: K-12
| 178 students
Dewey County Public Schools (Closed)
School
Location
Grades
Students
S Prairie Rd
Eagle Butte, SD 57625
(605) 964-2702
Eagle Butte, SD 57625
(605) 964-2702
Grades: 3-4
| 62 students
504 N Taft
Isabel, SD 57633
(605) 466-2125
Isabel, SD 57633
(605) 466-2125
Grades: K-6
| 38 students
504 N Taft
Isabel, SD 57633
(605) 466-2125
Isabel, SD 57633
(605) 466-2125
Grades: 9-12
| 27 students
504 N Taft
Isabel, SD 57633
(605) 466-2125
Isabel, SD 57633
(605) 466-2125
Grades: 7-8
| 10 students
Northwest Area Ed Cooperative - 01 (Closed 2023)
Alternative School
503 N Main
Isabel, SD 57633
(605) 466-2206
Isabel, SD 57633
(605) 466-2206
Grades: K-12
| n/a students
<麻豆果冻传媒 class='so-dt-title' id='faq'>Frequently Asked Questions
What are the top ranked public schools in Dewey County, SD?
The top ranked public schools in Dewey County, SD include Timber Lake Elementary - 02, Timber Lake High School - 01 and Timber Lake Middle School - 03.
How many public schools are located in Dewey County?
11 public schools are located in Dewey County.
What percentage of students in Dewey County go to public school?
96% of all K-12 students in Dewey County are educated in public schools (compared to the SD state average of 91%).
What is the racial composition of students in Dewey County?
Dewey County public schools minority enrollment is 91% of the student body (majority American Indian), which is more than the South Dakota public schools average of 33% (majority American Indian).
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